A very early strength concrete for highway construction

Document Type

Article

Publication Date

1-1-2007

Abstract

The purpose of this research study was to develop an improved very early strength (VES) concrete mix for highway construction. More than 50 concrete mixes were evaluated for strength, shrinkage, and curing rate (maturity), eventually leading to the development of an optimized VES concrete mix with improved performance characteristics. The new mix, which is detailed in the paper, can gain strength more reliably than the former standard New Jersey Department of Transportation (NJDOT) VES mix, reaching a flexural strength of 350 psi (2.4 MPa) in less than 6.5 h. The improved mix also exhibited 79 to 93 % less shrinkage. The study found that maintaining an initial mix temperature of 28°C (82°F) is crucial to attain target strengths. Copyright © 2007 by ASTM International.

Identifier

47149096399 (Scopus)

Publication Title

Journal of Testing and Evaluation

External Full Text Location

https://doi.org/10.1520/jte100888

ISSN

00903973

First Page

609

Last Page

617

Issue

6

Volume

35

Grant

FHWA-NJ-2002-004

Fund Ref

New Jersey Department of Transportation

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